Finishing machine



Dec. 5, 1933. A, w. HALLAM 1,937,819

FINISHING MACHINE Filed July 18, 1930 Patented Dec. 5, 1933 '1 11,937,31-,9 u FiNrsHrNG iyrAolnNE AlbertWilliamHallam, Kettering, England, as-

signor to l,United Shoe lylachinery` Corporation, Paterson, N. J., a corporation of NewJers'ey Application July 1s,-193o,seria1 No. 468,891, and V Ain "Great Britain Septernber10,'192,9I

solaires. (o1. rafts) 'Ifhisinvention relates tonishing machines and'is herein llllll'ated as embodied inA va""d`e' vice fonburnisliing fsole edges of' shoes. ``f.fEinishing"`machine`s of one 'class commonly 5 comprise "a scouring tool, f better known `as`- a Nauinleag pachthe work-'engaging faceof which isarranged to be rotated about a substantially vertical airis. In machines of this typejas well as others, itjisladvantageous in certain instancestobe able to substitute one form ofjtoolheadlforanother sothat the machine may be 'adapted iforperforming a plurality of operations, inthewrepairing of shoes, for example, merely by fthel interchan'ging ofdifferent, relatively small l5 and inexpensive tool mechanisms. Among other objectathepresent invention is designed toprojvideja burnishing device which mayV be substijt'lited for the"NaumkBg padattachment in a xjfinishing machineof the type above referred to,

without entailing any other changes inthe ma*V "chine,win orderthat it mayreadily be adapted `forjburnishing the sole edges of shoes merely `by the' substitution ofthe burnishing device for thescouring device. l e V2li To this end, the invention as herein illustrated `consists `in providing an oscillating tool carrier, a tool"h`older mounted to rotate `on the carrier ftoA allow any one of a plurality of tools on the "holder to be broughtinto operative position and .30 ,jmeans for oscillating the carrier arranged to ,rotatejaboutwaniaxis paralleltogthe plane of foscillationof the axis of the holder and extend- "ingin "adirection between the directions of the axis` of `the `holder in its` extreme positions. Asl

`315 herein illustrated, the above-mentioned relation fis effected by so mounting the carrier that, as it is oscillated the axis about which "the 1holder "rotates'onthe carrier moves into and out of alinemltwi'th the axis of the means for oscil-Y 4d0 lating the carrier. By the use of such a -con- 'struction the operating tools may be so mounted `fas to' facilitate presentation of the work'thereto :fand yet allow the means for oscillating the tool jjearrier to be so disposed as to enable a burn- `45 ishing device constructed as above defined to be substituted for a scouring mechanism of the `type ,"above referred to without requiring any other ehangeshin .the machine.

""gToinsure that an efficient driving connectio `shall bemaintained between `the carrier andthe itilivev shaft when disposed `as above described,

"a [universal coupling is provided betweenthe shaft" and the carrier for Amaintaining-the driv- "fing connection therebetween notwithstanding .55 changesin their angular relation owing to'the oscillatiorrofi the carrier. `In accordance with another 1feature of the invention and as herein illustrated, the coupling, a self-alining device, comprises ball-bearing elements associated with 76,0 an eccentric portion of the drive shaft and the `means of 'a shifter 22 pivoted to the bracket o lated to and fro rapidly.

carrier, the bearing elements being relatively rowhichthe carrier rotates are utilizedto oscillate o These and other features of the invention` will 'i now be more particularly described by reference tojthe accompanying drawing andfpointedout in the appended claims.

In thedrawing,

Fig. lis a side elevation of a machine in m which the invention isembodied, t

FigJZ is a front sectional elevation taken along theV line II-II of Fig.` 1 but with' the operating parts in a `diilerent position, and 80 Fig. 3 isa sectional plan view taken along si. the line III-III in Fig. 2. 'l

".Tlie illustrated edge setting device is supported on a machine base (not shown) adapted `alsofor the reception of a Naumkeag pad at- 35. tachment, by means of a bracket l0 which @1. rotatably supports a drivingshaft 12 `carrying looseland'tight pulleys 14 and 16, respectively, in` suchafp'osition that the same belt can be used for both the Naumkeag padattachment andthe edge setting device Without `being `al- :o

tered. VWhen installed onI a` finishing machine "ofjthe'type above referred to, `the face 18 of -th`e bracket l0 is seated against a boss on the `machine frame and is held in assembled rela- `tion by bolts (not shown) which pass through 1- holes 20 in the base `of the bracket. The driv- "ing' belt (not shown) may be Vtransferred from either of the pulleys `11i or 16 to the other by l0 and having a controlhandle 24. A stud 26 xedly mounted cnthe bracket 10 substantially perpendicular to the drive shaft 12 provides asupport for a carrier 28 which is loscillated on the support 26, by means later to be 105 described; in order `to cause tools 30 and 32 rel leasably mounted in a tool holder 33 to be oscil- The carrier 28 is oscillated when the shaft l2 is rotated by means' of an eccentric vcrank 34 110 on the lower end of the drive shaft 12. It will now be` apparent from Fig. 2 that, owing-to the relation of the drive shaft l2 and the stud 26 about which the carrier 28 oscillates, it becomes necessary" to provide a universal connection betweeen the crank 34 and the carrier 28 in order"A 1 continuously to` maintain a driving connection therebetween. As illustrated, this connection comprises a ball bearing which serves eifectively at the same time as both an antifriction and a 120 2 self-alining connection between the crank 3'4 and the carrier 28. The inner race 36 of the 4ball bearing is held fixed on the crank 34 by means of a nut 38 while the outer race 40 of .the ball 5 bearing is received in a circular recess 42 in a block 44 the opposite outer faces of which are plane and parallel. 'Iheblock 44 is also arranged to slide between the upwardly extending arms 46 oi the carrier 28 in a direction parallel engaging faces of the races 36 and 40 of vthe ball bearing are so shaped as to allow the outer race 40 to be rotated in direction with respect to the inner race, in consequence of which a driving connection is maintained between the crank 34 and the carrier 28 notwithstanding changes vin the angular relation of the carrier and the i, drive shaft 12; and, owing to the sliding connection between the block 44 and the arms 46 of the carrier 28, onlyT those components of the cranks motion extending in a direction transverse to the axis of the stud 26 are utilized ,to oscillate the carrier 28. A guard 48 is' se- Y :cured to the bracket l in proximity to and 5 vsurrounding the arms 46 oi the carrier in order to prevent accidental contact o the operator or a piece oi work with the carrier and to prevent oil from iiying from it.

To allow the positions of thctools and 32 rito be interchanged when desired so that either `of the tools may be brought into Aoperative posittion, the tool holder 33 is mounted for rotation labout a stud 50 integral with the carrier 28 and `gwhich, as herein illustrated, is substantially `,pegfpendicular to the axis or oscillation of the carrier. As a result oi ,thisl construction it is apparent that the axis oi the drive shaft and that about which the tool holder rotates with respect to the carrier are coincident when the carrier is in its intermediate position. The holder 33 is held locked with espect to the carrier 28 in either of two positions by means of lugs 52 extending from the ,upper surface of the holder 33 and adapted to be received within complemental recesses 54 in the carrier '28. The holder is thus held releasably in locking engagement with the carrier by means of a spring 55 retained in a recess between the stud 50 and a recess in the holder ing retained in the position illustrated by means of a ring 5S which is held seated on a shoulder on the stud 5c by means of a screw 60. In lorder to interchange the positions of the tools 32 it is necessary merely to move the holder 33 downwardly against the stress oi the spring 56 far enough to remove the lugs 52 from the recesses 54 and then to rotate the holder 33 through that angle by which the tools 30 'and 32 are separated.

A iinge: hook 62 beneath the tcolsprovides a convenient aid to the operato-r in presenting the work to the tool in operative position, and gas burners 64 are provided one at leach side of the machine for keeping the tools at the desired temperature.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is: 1. In a burnishing machine, aftool carrier, 0 means for oscillating said carrier comprising `a Vdrive shaft having an eccentric portion, and

to that of the axis of the stud 26. The ball`r 33, the spring be- Y means constructed and arranged to maintain a driving connection between said carrier and the eccentric portion of said shaft comprising bearing elements associated with said eccentric portion of the shaft and said carrier, said elements being relatively rotatable in any direction.

2. In a burnishing machine, an oscillating tool carrier, a rotatably mounted drive shaft having an eccentric portion for causing the carrier tov be oscillated when the shaft is rotated, and a ball bearing for maintaining a driving connection between said carrier and the eccentric portion of said shaft, one race of the bearing being iixed to the eccentric portion of said shaft and Vthe other race of the bearing being slidably mounted in said carrier, said races being relatively rotatable in any'direction. v

3. In a burnishing machine, in combination, an oscillating tool carrier, atool holder mounted. .1. to rotate on said carrier to allow any one of a uplurality'of tools on the holder to be brought into operative position, and means for oscillating saidcarrier arranged to rotate about an axis parallel to the plane of oscillation of the axis of the holder and extending in a direction between the directions ofthe holders axis in its extreme positions.

4. In. a burnishing machine, in combination, an oscillating tool carrier, a tool holder mounted to rotate on said carrier to allow any oneA of a plurality of tools on the 'holder to be brought into operative position, and means for oscillating said carrier, said carrier being mounted so that as itis oscillated the axis about which the holder rotates mo es into and out of alinement with the axis of saidmeans for oscillating the carrier.

5. I n a burnishing machine, in combination, an oscillating tool carrier, a tool holder mounted to rotate on said carrier about an axis perpendicular to the axis of oscillation of the carrier l tovallow any of a plurality oi tools on the holder to be brought into operative'position, a drive shaft having an eccentric portion for voscillating saidrcarrier, and connections between said shaft and said carrier comprising a ball bearing one l race of which is fixed to the eccentric portion Voi; the shaft andthe other of which is slidably mounted in said carrier.

6. In a burnishing machine, incombination, an oscillating/tool carrier, means for oscillating 1 said carrier comprising a drive shaft having an eccentric portion, and means for maintaining a .driving connection between the eccentric por- `tion of said shaft and said carrier comprising a bearing member mounted to slide in said carrier 1 Y and a bearing element connected with said iirstmentioned bearing member iixed to the eccentric portion of said shaft, said bearing element and Ymember being constructed and arranged to allow relative rotation therebetween in any direction. 1 7. In a burnishing machine, an oscillating tool carrier, a drive shaft having a crank, means for maintaining adriving'connection between said carrier and said crank to cause it to oscillate the. carrier when the shaft is rotated, comprising a vl block arranged to slide in the carrier and a bearing connecting lsaid block and the crank on said shaft constructed and arranged to allow relative angular displacement of the block and crank.

ALBERT WILLIAM I-IALLAM.

CERTIFICATE 0F GQRREGTIQN.

Patent No. ,937,819. December 5, F1933.

ALBERT WILLIAM HALLAM.

it is hereby certified that error appears in the printed specification ci the above numbered patent requiring correction as follows: Page 1, line 59, for "balbbearing" read bearing; and that the said Letters Patent should be read with this eorrecton therein' thatl the .same may conform to the record et the case in the Patent Office.

Signed and sealed this 20th day of February, A. D. 1934.

M. Hopkins (Seal) Acting Commissioner of Patents 

